Trish, You're right, it's very seldom that I will view my original post again, and to me it doesn't matter who agrees with me. I'm more for the discussion than the atta girl.
When I see a system message I think someone is actually going to talk to me and its a disappointment to just see a thumbs up when I open it. You get a large number of messages I'm sure, so for you its just part of the routine but for me its a plain letdown